Yesterday I updated my version of the Chrome Beta to 2.0.172.23 and since  then my blog displays the mobile friendly version.

I will look into it this weekend but I fear the end result maybe disabling the mobile friendly version until I can resolve it permanently.

Sorry for any inconvenience but please bear with me while I work on resolution.

UPDATE: Thanks to Clive the issue has been resolved. It was a coding error which this version of Chrome seemed to be picky about, where as others are not.